Equivalent expression of 5g +7g

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Consider the following estimates from the early 2010s of shares of income to each group. country poorest 40% next 30% richest 30% bolivia 10 25 65 chile 10 20 70 uruguay 20 30 50 1.) using the 4-point curved line drawing tool, plot the lorenz curve for bolivia. properly label your curve. 2.) using the 4-point curved line drawing tool, plot the lorenz curve for uruguay. properly label your curve.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x